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<h1>lwipopts.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> * Copyright (c) 2001-2003 Swedish Institute of Computer Science.</span>
<a name="l00003"></a>00003 <span class="comment"> * All rights reserved. </span>
<a name="l00004"></a>00004 <span class="comment"> * </span>
<a name="l00005"></a>00005 <span class="comment"> * Redistribution and use in source and binary forms, with or without modification, </span>
<a name="l00006"></a>00006 <span class="comment"> * are permitted provided that the following conditions are met:</span>
<a name="l00007"></a>00007 <span class="comment"> *</span>
<a name="l00008"></a>00008 <span class="comment"> * 1. Redistributions of source code must retain the above copyright notice,</span>
<a name="l00009"></a>00009 <span class="comment"> *    this list of conditions and the following disclaimer.</span>
<a name="l00010"></a>00010 <span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright notice,</span>
<a name="l00011"></a>00011 <span class="comment"> *    this list of conditions and the following disclaimer in the documentation</span>
<a name="l00012"></a>00012 <span class="comment"> *    and/or other materials provided with the distribution.</span>
<a name="l00013"></a>00013 <span class="comment"> * 3. The name of the author may not be used to endorse or promote products</span>
<a name="l00014"></a>00014 <span class="comment"> *    derived from this software without specific prior written permission. </span>
<a name="l00015"></a>00015 <span class="comment"> *</span>
<a name="l00016"></a>00016 <span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED </span>
<a name="l00017"></a>00017 <span class="comment"> * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF </span>
<a name="l00018"></a>00018 <span class="comment"> * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT </span>
<a name="l00019"></a>00019 <span class="comment"> * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, </span>
<a name="l00020"></a>00020 <span class="comment"> * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT </span>
<a name="l00021"></a>00021 <span class="comment"> * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS </span>
<a name="l00022"></a>00022 <span class="comment"> * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN </span>
<a name="l00023"></a>00023 <span class="comment"> * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING </span>
<a name="l00024"></a>00024 <span class="comment"> * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY </span>
<a name="l00025"></a>00025 <span class="comment"> * OF SUCH DAMAGE.</span>
<a name="l00026"></a>00026 <span class="comment"> *</span>
<a name="l00027"></a>00027 <span class="comment"> * This file is part of the lwIP TCP/IP stack.</span>
<a name="l00028"></a>00028 <span class="comment"> * </span>
<a name="l00029"></a>00029 <span class="comment"> * Author: Adam Dunkels &lt;adam@sics.se&gt;</span>
<a name="l00030"></a>00030 <span class="comment"> *</span>
<a name="l00031"></a>00031 <span class="comment"> */</span>
<a name="l00032"></a>00032 <span class="preprocessor">#ifndef __LWIPOPTS_H__</span>
<a name="l00033"></a>00033 <span class="preprocessor"></span><span class="preprocessor">#define __LWIPOPTS_H__</span>
<a name="l00034"></a>00034 <span class="preprocessor"></span>
<a name="l00035"></a>00035 <span class="preprocessor">#include "config.h"</span>
<a name="l00036"></a>00036 
<a name="l00037"></a>00037 <span class="preprocessor">#define LWIP_NOASSERT 1 // To suppress some errors for now (no debug output)</span>
<a name="l00038"></a>00038 <span class="preprocessor"></span><span class="preprocessor">#define SYS_LIGHTWEIGHT_PROT            1</span>
<a name="l00039"></a>00039 <span class="preprocessor"></span>
<a name="l00040"></a>00040 <span class="preprocessor">#define TCPIP_THREAD_PRIO 5</span>
<a name="l00041"></a>00041 <span class="preprocessor"></span>
<a name="l00042"></a>00042 <span class="comment">/* ---------- Memory options ---------- */</span>
<a name="l00043"></a>00043 <span class="comment">/* MEM_ALIGNMENT: should be set to the alignment of the CPU for which</span>
<a name="l00044"></a>00044 <span class="comment">   lwIP is compiled. 4 byte alignment -&gt; define MEM_ALIGNMENT to 4, 2</span>
<a name="l00045"></a>00045 <span class="comment">   byte alignment -&gt; define MEM_ALIGNMENT to 2. */</span>
<a name="l00046"></a>00046 <span class="preprocessor">#define MEM_ALIGNMENT           4</span>
<a name="l00047"></a>00047 <span class="preprocessor"></span>
<a name="l00048"></a>00048 <span class="comment">/* MEM_SIZE: the size of the heap memory. If the application will send</span>
<a name="l00049"></a>00049 <span class="comment">a lot of data that needs to be copied, this should be set high. */</span>
<a name="l00050"></a>00050 <span class="preprocessor">#define MEM_SIZE                NETWORK_MEM_POOL //3000</span>
<a name="l00051"></a>00051 <span class="preprocessor"></span>
<a name="l00052"></a>00052 <span class="comment">/* MEMP_NUM_PBUF: the number of memp struct pbufs. If the application</span>
<a name="l00053"></a>00053 <span class="comment">   sends a lot of data out of ROM (or other static memory), this</span>
<a name="l00054"></a>00054 <span class="comment">   should be set high. */</span>
<a name="l00055"></a>00055 <span class="preprocessor">#define MEMP_NUM_PBUF           20</span>
<a name="l00056"></a>00056 <span class="preprocessor"></span><span class="comment">/* MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One</span>
<a name="l00057"></a>00057 <span class="comment">   per active UDP "connection". */</span>
<a name="l00058"></a>00058 <span class="preprocessor">#define MEMP_NUM_UDP_PCB        NETWORK_UDP_CONNS //8</span>
<a name="l00059"></a>00059 <span class="preprocessor"></span><span class="comment">/* MEMP_NUM_TCP_PCB: the number of simulatenously active TCP</span>
<a name="l00060"></a>00060 <span class="comment">   connections. */</span>
<a name="l00061"></a>00061 <span class="preprocessor">#define MEMP_NUM_TCP_PCB        NETWORK_TCP_CONNS //10</span>
<a name="l00062"></a>00062 <span class="preprocessor"></span><span class="comment">/* MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP</span>
<a name="l00063"></a>00063 <span class="comment">   connections. */</span>
<a name="l00064"></a>00064 <span class="preprocessor">#define MEMP_NUM_TCP_PCB_LISTEN NETWORK_TCP_LISTEN_CONNS //8</span>
<a name="l00065"></a>00065 <span class="preprocessor"></span><span class="comment">/* MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP</span>
<a name="l00066"></a>00066 <span class="comment">   segments. */</span>
<a name="l00067"></a>00067 <span class="preprocessor">#define MEMP_NUM_TCP_SEG        8</span>
<a name="l00068"></a>00068 <span class="preprocessor"></span><span class="comment">/* MEMP_NUM_SYS_TIMEOUT: the number of simulateously active</span>
<a name="l00069"></a>00069 <span class="comment">   timeouts. */</span>
<a name="l00070"></a>00070 <span class="preprocessor">#define MEMP_NUM_SYS_TIMEOUT    8</span>
<a name="l00071"></a>00071 <span class="preprocessor"></span>
<a name="l00072"></a>00072 
<a name="l00073"></a>00073 <span class="comment">/* The following four are used only with the sequential API and can be</span>
<a name="l00074"></a>00074 <span class="comment">   set to 0 if the application only will use the raw API. */</span>
<a name="l00075"></a>00075 <span class="comment">/* MEMP_NUM_NETBUF: the number of struct netbufs. */</span>
<a name="l00076"></a>00076 <span class="preprocessor">#define MEMP_NUM_NETBUF         4</span>
<a name="l00077"></a>00077 <span class="preprocessor"></span><span class="comment">/* MEMP_NUM_NETCONN: the number of struct netconns. */</span>
<a name="l00078"></a>00078 <span class="preprocessor">#define MEMP_NUM_NETCONN        4</span>
<a name="l00079"></a>00079 <span class="preprocessor"></span><span class="comment">/* MEMP_NUM_APIMSG: the number of struct api_msg, used for</span>
<a name="l00080"></a>00080 <span class="comment">   communication between the TCP/IP stack and the sequential</span>
<a name="l00081"></a>00081 <span class="comment">   programs. */</span>
<a name="l00082"></a>00082 <span class="preprocessor">#define MEMP_NUM_API_MSG        8</span>
<a name="l00083"></a>00083 <span class="preprocessor"></span><span class="comment">/* MEMP_NUM_TCPIPMSG: the number of struct tcpip_msg, which is used</span>
<a name="l00084"></a>00084 <span class="comment">   for sequential API communication and incoming packets. Used in</span>
<a name="l00085"></a>00085 <span class="comment">   src/api/tcpip.c. */</span>
<a name="l00086"></a>00086 <span class="preprocessor">#define MEMP_NUM_TCPIP_MSG      8</span>
<a name="l00087"></a>00087 <span class="preprocessor"></span>
<a name="l00088"></a>00088 <span class="comment">/* These two control is reclaimer functions should be compiled</span>
<a name="l00089"></a>00089 <span class="comment">   in. Should always be turned on (1). */</span>
<a name="l00090"></a>00090 <span class="preprocessor">#define MEM_RECLAIM             1</span>
<a name="l00091"></a>00091 <span class="preprocessor"></span><span class="preprocessor">#define MEMP_RECLAIM            1</span>
<a name="l00092"></a>00092 <span class="preprocessor"></span>
<a name="l00093"></a>00093 <span class="comment">/* ---------- Pbuf options ---------- */</span>
<a name="l00094"></a>00094 <span class="comment">/* PBUF_POOL_SIZE: the number of buffers in the pbuf pool. */</span>
<a name="l00095"></a>00095 <span class="preprocessor">#define PBUF_POOL_SIZE          4</span>
<a name="l00096"></a>00096 <span class="preprocessor"></span>
<a name="l00097"></a>00097 <span class="comment">/* PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. */</span>
<a name="l00098"></a>00098 <span class="preprocessor">#define PBUF_POOL_BUFSIZE       1100</span>
<a name="l00099"></a>00099 <span class="preprocessor"></span>
<a name="l00100"></a>00100 <span class="comment">/* PBUF_LINK_HLEN: the number of bytes that should be allocated for a</span>
<a name="l00101"></a>00101 <span class="comment">   link level header. */</span>
<a name="l00102"></a>00102 <span class="preprocessor">#define PBUF_LINK_HLEN          16</span>
<a name="l00103"></a>00103 <span class="preprocessor"></span>
<a name="l00104"></a>00104 <span class="comment">/* ---------- TCP options ---------- */</span>
<a name="l00105"></a>00105 <span class="preprocessor">#define LWIP_TCP                1</span>
<a name="l00106"></a>00106 <span class="preprocessor"></span><span class="preprocessor">#define TCP_TTL                 255</span>
<a name="l00107"></a>00107 <span class="preprocessor"></span>
<a name="l00108"></a>00108 <span class="comment">/* Controls if TCP should queue segments that arrive out of</span>
<a name="l00109"></a>00109 <span class="comment">   order. Define to 0 if your device is low on memory. */</span>
<a name="l00110"></a>00110 <span class="preprocessor">#define TCP_QUEUE_OOSEQ         1</span>
<a name="l00111"></a>00111 <span class="preprocessor"></span>
<a name="l00112"></a>00112 <span class="comment">/* TCP Maximum segment size. */</span>
<a name="l00113"></a>00113 <span class="preprocessor">#define TCP_MSS                 512</span>
<a name="l00114"></a>00114 <span class="preprocessor"></span>
<a name="l00115"></a>00115 <span class="comment">/* TCP sender buffer space (bytes). */</span>
<a name="l00116"></a>00116 <span class="preprocessor">#define TCP_SND_BUF             512</span>
<a name="l00117"></a>00117 <span class="preprocessor"></span>
<a name="l00118"></a>00118 <span class="comment">/* TCP sender buffer space (pbufs). This must be at least = 2 *</span>
<a name="l00119"></a>00119 <span class="comment">   TCP_SND_BUF/TCP_MSS for things to work. */</span>
<a name="l00120"></a>00120 <span class="preprocessor">#define TCP_SND_QUEUELEN        6 * TCP_SND_BUF/TCP_MSS</span>
<a name="l00121"></a>00121 <span class="preprocessor"></span>
<a name="l00122"></a>00122 <span class="comment">/* TCP receive window. */</span>
<a name="l00123"></a>00123 <span class="preprocessor">#define TCP_WND                 512</span>
<a name="l00124"></a>00124 <span class="preprocessor"></span>
<a name="l00125"></a>00125 <span class="comment">/* Maximum number of retransmissions of data segments. */</span>
<a name="l00126"></a>00126 <span class="preprocessor">#define TCP_MAXRTX              12</span>
<a name="l00127"></a>00127 <span class="preprocessor"></span>
<a name="l00128"></a>00128 <span class="comment">/* Maximum number of retransmissions of SYN segments. */</span>
<a name="l00129"></a>00129 <span class="preprocessor">#define TCP_SYNMAXRTX           4</span>
<a name="l00130"></a>00130 <span class="preprocessor"></span>
<a name="l00131"></a>00131 <span class="comment">/* ---------- ARP options ---------- */</span>
<a name="l00132"></a>00132 <span class="preprocessor">#define ARP_TABLE_SIZE 10</span>
<a name="l00133"></a>00133 <span class="preprocessor"></span><span class="preprocessor">#define ARP_QUEUEING 1</span>
<a name="l00134"></a>00134 <span class="preprocessor"></span>
<a name="l00135"></a>00135 <span class="comment">/* ---------- IP options ---------- */</span>
<a name="l00136"></a>00136 <span class="comment">/* Define IP_FORWARD to 1 if you wish to have the ability to forward</span>
<a name="l00137"></a>00137 <span class="comment">   IP packets across network interfaces. If you are going to run lwIP</span>
<a name="l00138"></a>00138 <span class="comment">   on a device with only one network interface, define this to 0. */</span>
<a name="l00139"></a>00139 <span class="preprocessor">#define IP_FORWARD              0</span>
<a name="l00140"></a>00140 <span class="preprocessor"></span>
<a name="l00141"></a>00141 <span class="comment">/* If defined to 1, IP options are allowed (but not parsed). If</span>
<a name="l00142"></a>00142 <span class="comment">   defined to 0, all packets with IP options are dropped. */</span>
<a name="l00143"></a>00143 <span class="preprocessor">#define IP_OPTIONS              1</span>
<a name="l00144"></a>00144 <span class="preprocessor"></span>
<a name="l00145"></a>00145 <span class="comment">/* ---------- ICMP options ---------- */</span>
<a name="l00146"></a>00146 <span class="preprocessor">#define ICMP_TTL                255</span>
<a name="l00147"></a>00147 <span class="preprocessor"></span>
<a name="l00148"></a>00148 
<a name="l00149"></a>00149 <span class="comment">/* ---------- DHCP options ---------- */</span>
<a name="l00150"></a>00150 <span class="comment">/* Define LWIP_DHCP to 1 if you want DHCP configuration of</span>
<a name="l00151"></a>00151 <span class="comment">   interfaces. DHCP is not implemented in lwIP 0.5.1, however, so</span>
<a name="l00152"></a>00152 <span class="comment">   turning this on does currently not work. */</span>
<a name="l00153"></a>00153 <span class="preprocessor">#define LWIP_DHCP               1</span>
<a name="l00154"></a>00154 <span class="preprocessor"></span>
<a name="l00155"></a>00155 <span class="comment">/* 1 if you want to do an ARP check on the offered address</span>
<a name="l00156"></a>00156 <span class="comment">   (recommended). */</span>
<a name="l00157"></a>00157 <span class="preprocessor">#define DHCP_DOES_ARP_CHECK     1</span>
<a name="l00158"></a>00158 <span class="preprocessor"></span>
<a name="l00159"></a>00159 <span class="comment">/* ---------- UDP options ---------- */</span>
<a name="l00160"></a>00160 <span class="preprocessor">#define LWIP_UDP                1</span>
<a name="l00161"></a>00161 <span class="preprocessor"></span><span class="preprocessor">#define UDP_TTL                 255</span>
<a name="l00162"></a>00162 <span class="preprocessor"></span>
<a name="l00163"></a>00163 
<a name="l00164"></a>00164 <span class="comment">/* ---------- Statistics options ---------- */</span>
<a name="l00165"></a>00165 <span class="preprocessor">#define STATS</span>
<a name="l00166"></a>00166 <span class="preprocessor"></span>
<a name="l00167"></a>00167 <span class="preprocessor">#ifdef LWIP_STATS</span>
<a name="l00168"></a>00168 <span class="preprocessor"></span><span class="preprocessor">#define LINK_STATS 1</span>
<a name="l00169"></a>00169 <span class="preprocessor"></span><span class="preprocessor">#define IP_STATS   1</span>
<a name="l00170"></a>00170 <span class="preprocessor"></span><span class="preprocessor">#define ICMP_STATS 1</span>
<a name="l00171"></a>00171 <span class="preprocessor"></span><span class="preprocessor">#define UDP_STATS  1</span>
<a name="l00172"></a>00172 <span class="preprocessor"></span><span class="preprocessor">#define TCP_STATS  1</span>
<a name="l00173"></a>00173 <span class="preprocessor"></span><span class="preprocessor">#define MEM_STATS  1</span>
<a name="l00174"></a>00174 <span class="preprocessor"></span><span class="preprocessor">#define MEMP_STATS 1</span>
<a name="l00175"></a>00175 <span class="preprocessor"></span><span class="preprocessor">#define PBUF_STATS 1</span>
<a name="l00176"></a>00176 <span class="preprocessor"></span><span class="preprocessor">#define SYS_STATS  1</span>
<a name="l00177"></a>00177 <span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* STATS */</span>
<a name="l00178"></a>00178 
<a name="l00179"></a>00179 <span class="preprocessor">#define LWIP_PROVIDE_ERRNO 1</span>
<a name="l00180"></a>00180 <span class="preprocessor"></span>
<a name="l00181"></a>00181 <span class="preprocessor">#endif </span><span class="comment">/* __LWIPOPTS_H__ */</span>
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  <p class="footer">The Make Controller Kit is an open source project maintained by <a href="http://www.makingthings.com">MakingThings</a>.<br />
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